Wired and Daring Fireball have even more details on his life and career, and Apple CEO Tim Cook writes, “He was a true visionary whose creativity, heart, and groundbreaking work on the Mac will forever inspire us.” In this video about Apple’s influential pre-Macintosh ‘OK’ computer, you can hear Bill Atkinson talk about the Lisa, and how, in his words, it “contributed toward the idea that computers were for everyone.”